<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>[29406] branches/3.8: Ignore entities in XML-RPC requests.</title>
</head>
<body>
<style type="text/css"><!--
#msg dl.meta { border: 1px #006 solid; background: #369; padding: 6px; color: #fff; }
#msg dl.meta dt { float: left; width: 6em; font-weight: bold; }
#msg dt:after { content:':';}
#msg dl, #msg dt, #msg ul, #msg li, #header, #footer, #logmsg { font-family: verdana,arial,helvetica,sans-serif; font-size: 10pt; }
#msg dl a { font-weight: bold}
#msg dl a:link { color:#fc3; }
#msg dl a:active { color:#ff0; }
#msg dl a:visited { color:#cc6; }
h3 { font-family: verdana,arial,helvetica,sans-serif; font-size: 10pt; font-weight: bold; }
#msg pre { overflow: auto; background: #ffc; border: 1px #fa0 solid; padding: 6px; }
#logmsg { background: #ffc; border: 1px #fa0 solid; padding: 1em 1em 0 1em; }
#logmsg p, #logmsg pre, #logmsg blockquote { margin: 0 0 1em 0; }
#logmsg p, #logmsg li, #logmsg dt, #logmsg dd { line-height: 14pt; }
#logmsg h1, #logmsg h2, #logmsg h3, #logmsg h4, #logmsg h5, #logmsg h6 { margin: .5em 0; }
#logmsg h1:first-child, #logmsg h2:first-child, #logmsg h3:first-child, #logmsg h4:first-child, #logmsg h5:first-child, #logmsg h6:first-child { margin-top: 0; }
#logmsg ul, #logmsg ol { padding: 0; list-style-position: inside; margin: 0 0 0 1em; }
#logmsg ul { text-indent: -1em; padding-left: 1em; }#logmsg ol { text-indent: -1.5em; padding-left: 1.5em; }
#logmsg > ul, #logmsg > ol { margin: 0 0 1em 0; }
#logmsg pre { background: #eee; padding: 1em; }
#logmsg blockquote { border: 1px solid #fa0; border-left-width: 10px; padding: 1em 1em 0 1em; background: white;}
#logmsg dl { margin: 0; }
#logmsg dt { font-weight: bold; }
#logmsg dd { margin: 0; padding: 0 0 0.5em 0; }
#logmsg dd:before { content:'\00bb';}
#logmsg table { border-spacing: 0px; border-collapse: collapse; border-top: 4px solid #fa0; border-bottom: 1px solid #fa0; background: #fff; }
#logmsg table th { text-align: left; font-weight: normal; padding: 0.2em 0.5em; border-top: 1px dotted #fa0; }
#logmsg table td { text-align: right; border-top: 1px dotted #fa0; padding: 0.2em 0.5em; }
#logmsg table thead th { text-align: center; border-bottom: 1px solid #fa0; }
#logmsg table th.Corner { text-align: left; }
#logmsg hr { border: none 0; border-top: 2px dashed #fa0; height: 1px; }
#header, #footer { color: #fff; background: #636; border: 1px #300 solid; padding: 6px; }
#patch { width: 100%; }
#patch h4 {font-family: verdana,arial,helvetica,sans-serif;font-size:10pt;padding:8px;background:#369;color:#fff;margin:0;}
#patch .propset h4, #patch .binary h4 {margin:0;}
#patch pre {padding:0;line-height:1.2em;margin:0;}
#patch .diff {width:100%;background:#eee;padding: 0 0 10px 0;overflow:auto;}
#patch .propset .diff, #patch .binary .diff {padding:10px 0;}
#patch span {display:block;padding:0 10px;}
#patch .modfile, #patch .addfile, #patch .delfile, #patch .propset, #patch .binary, #patch .copfile {border:1px solid #ccc;margin:10px 0;}
#patch ins {background:#dfd;text-decoration:none;display:block;padding:0 10px;}
#patch del {background:#fdd;text-decoration:none;display:block;padding:0 10px;}
#patch .lines, .info {color:#888;background:#fff;}
--></style>
<div id="msg">
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/29406">29406</a></dd>
<dt>Author</dt> <dd>nacin</dd>
<dt>Date</dt> <dd>2014-08-06 17:50:02 +0000 (Wed, 06 Aug 2014)</dd>
</dl>
<h3>Log Message</h3>
<pre>Ignore entities in XML-RPC requests.
Merges <a href="http://core.trac.wordpress.org/changeset/29404">[29404]</a> to the 3.8 branch.
props mdawaffe, nacin.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#branches38srcwpincludesclassIXRphp">branches/3.8/src/wp-includes/class-IXR.php</a></li>
</ul>
<h3>Property Changed</h3>
<ul>
<li><a href="#branches38">branches/3.8/</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<span class="cx">Index: branches/3.8
</span><span class="cx">===================================================================
</span><del>--- branches/3.8 2014-08-06 17:39:35 UTC (rev 29405)
</del><ins>+++ branches/3.8 2014-08-06 17:50:02 UTC (rev 29406)
</ins><a id="branches38"></a>
<div class="propset"><h4>Property changes: branches/3.8</h4>
<pre class="diff"><span>
</span></pre></div>
<a id="svnmergeinfo"></a>
<div class="modfile"><h4>Modified: svn:mergeinfo</h4></div>
<span class="cx"> /branches/3.3:20543
</span><span class="cx"> /branches/3.4:21757
</span><span class="cx"> /branches/3.9:29384
</span><del>-/trunk:26864,26874-26875,26885,26887-26888,26905,26919-26925,26928-26929,26932,26935,26952,26959,26961,26967,26970,26993,26999,27006-27007,27012,27021,27119,27134,27511,27760,27822,27872,27905-27906,27928,27964,27975,27990,28053,28113,29327,29378,29381-29382,29397
</del><ins>+/trunk:26864,26874-26875,26885,26887-26888,26905,26919-26925,26928-26929,26932,26935,26952,26959,26961,26967,26970,26993,26999,27006-27007,27012,27021,27119,27134,27511,27760,27822,27872,27905-27906,27928,27964,27975,27990,28053,28113,29327,29378,29381-29382,29397,29404
</ins><span class="cx">\ No newline at end of property
</span><a id="branches38srcwpincludesclassIXRphp"></a>
<div class="modfile"><h4>Modified: branches/3.8/src/wp-includes/class-IXR.php (29405 => 29406)</h4>
<pre class="diff"><span>
<span class="info">--- branches/3.8/src/wp-includes/class-IXR.php 2014-08-06 17:39:35 UTC (rev 29405)
+++ branches/3.8/src/wp-includes/class-IXR.php 2014-08-06 17:50:02 UTC (rev 29406)
</span><span class="lines">@@ -203,11 +203,37 @@
</span><span class="cx"> {
</span><span class="cx"> // first remove the XML declaration
</span><span class="cx"> // merged from WP #10698 - this method avoids the RAM usage of preg_replace on very large messages
</span><del>- $header = preg_replace( '/<\?xml.*?\?'.'>/', '', substr($this->message, 0, 100), 1);
- $this->message = substr_replace($this->message, $header, 0, 100);
- if (trim($this->message) == '') {
</del><ins>+ $header = preg_replace( '/<\?xml.*?\?'.'>/s', '', substr( $this->message, 0, 100 ), 1 );
+ $this->message = trim( substr_replace( $this->message, $header, 0, 100 ) );
+ if ( '' == $this->message ) {
</ins><span class="cx"> return false;
</span><span class="cx"> }
</span><ins>+
+ // Then remove the DOCTYPE
+ $header = preg_replace( '/^<!DOCTYPE[^>]*+>/i', '', substr( $this->message, 0, 200 ), 1 );
+ $this->message = trim( substr_replace( $this->message, $header, 0, 200 ) );
+ if ( '' == $this->message ) {
+ return false;
+ }
+
+ // Check that the root tag is valid
+ $root_tag = substr( $this->message, 0, strcspn( substr( $this->message, 0, 20 ), "> \t\r\n" ) );
+ if ( '<!DOCTYPE' === strtoupper( $root_tag ) ) {
+ return false;
+ }
+ if ( ! in_array( $root_tag, array( '<methodCall', '<methodResponse', '<fault' ) ) ) {
+ return false;
+ }
+
+ // Bail if there are too many elements to parse
+ $element_limit = 30000;
+ if ( function_exists( 'apply_filters' ) ) {
+ $element_limit = apply_filters( 'xmlrpc_element_limit', $element_limit );
+ }
+ if ( $element_limit && 2 * $element_limit < substr_count( $this->message, '<' ) ) {
+ return false;
+ }
+
</ins><span class="cx"> $this->_parser = xml_parser_create();
</span><span class="cx"> // Set XML parser to take the case of tags in to account
</span><span class="cx"> xml_parser_set_option($this->_parser, XML_OPTION_CASE_FOLDING, false);
</span></span></pre>
</div>
</div>
</body>
</html>